Swage for inserted saw-teeth.



No. 836,527.- PATBNTED Nov. zo, 1906.

W. L. NBWELL, SWAGE FOR INSERTED SAW TEE-TH.

.APPLICATION FILEDl TUNE 10. 1905.

2 SHEETS-SHEET 1.

PATENTED NOV. v20, 1906.

v W. L. NEWELL. SWAGE FOR INSERTED SAW TBTH.

APPLICATION FILLED JUNE 10, 1905.

2 SHEETS-SHEET 2,

W/TNESSES BYZIMWL Afro NHS tion taken upon the line 2 2 of Fig. 1.

WALLACE LANGDON NEWELL, OF BUCKEYE, WASHINGTON.

swAeE Fon iNsERTED sAw-TEETH.

Specification of Letters Patent.

Patented Nom-20, 1906.

Application filed June 10, 1905. Serial No. 264,609.

To all whom t may concern,.- i

Be it known that I, WALLACE LANGDON NEwELL, a citizen of the UnitedStates, and a residenty ofv Buckeye, in the county of Spokane and VStateof Washington, have invented a new and Improved Swage'forlnsertedSaw-Teeth, of which the following is a full, clear, and exactdescription.

This invention relates to machines for swaging saw-teeth, and isespecially useful for swagingI such teethwhen removed from the body ofthe saw.

The object of the invention is to provide improved means for holdingthe'teeth against the anvil and swage during the swaging operation.

The invention constitutes an improvement on the invention describedinapplication made byUlysses Staley and myself, filed June 3, 1904, SerialNo. 210,967.

The invention consists in the construction and combination of parts tobe more fully described hereinafter, and definitely set forth in theclaims,

Reference is to be had to the accompanying drawings, forming a part ofthis specification, vin which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is aside elevation of the machine, certain parts being brokenaway, this view showing the machine in an open position in,

which the tooth may be inserted preparatory to swaging its point. Fig. 2is a vertical sec- Fig. 3 is substantially a vertical section taken uponthe line 3 3 of Fig. 4, a portion of the body of the machine being shownin elevation and the operating-lever represented as broken away. Fig. 4is a plan, the operating-lever being represented as broken away, as inFig. 3. Fig. 5 is a horizontal cross-section taken upon the line 5 5 ofFig. 3 and illustrating the manner of securing the tooth in the machine. Fig. 6 is a detail showing a portion of a tooth being operated uponbetweenthe anvil and the swage, the swage being represented incross-section. Fig. 7 is a side elevation of the clip or templet whichconstitutes a part of my invention. Fig. S is a perspective of thetooth-holder. Fig. 9 is a perspective showing a portion of the swage andshowing how the swaging-face is applied to the tooth preparatory toswaging the tooth; and Fig.

the swage after the movement which it takes in the swaging operation.The tooth in this view is represented as spread or swaged at'its point.

Referring more particularly to the parts, 1 represents the frame or bodyof the machine, which consists of a massive pillow-block, preferably ofcast-iron and formed with a suitable base 2, adapted to be boltedsecurely to the iioor. On the forward face of this pillow-block avertically-disposed channel is provided, and passing transverselythroughthis channel. a horizontal shaft 4 is rotatably mounted. This shaft, asindicated most clearly in Fig. 2, is provided at its middle portion witha recess 5, presenting a depressed face 6. This shaft 4'constitutes aswage. It is preferably provided 4with a squared extremity 7 ,to which asuitable'operating-lever 8 is attached'by a nut 9, as indicated. `Itsopposite extremity is formed with circumferential grooves 10 10a, ineither of which there is `received a clip or templet 11. Theconstruction of this templet .is very clearly shown in Figs. 2 and 7.vIt'is formed with a semicircular notch 12 in its upper edge, which isreceived in one of the grooves 10 or 10a to hold the swage in position.`The body of the templet -11 is formed with a vertically-disposed slot13, through which passes a removable bolt 14, enabling the templetorclip to be 'adjusted toward the body of the swage, as desired. Thisclip,1when applied as indicated in Fig. 2, affords means for ,limitingthe longitudinal movement of the swage. It has other functions whichwill be described more fully lr. ereinafter.

In the channel 3 above the swage I provide an anvil 15, which consistsof a block of hard metal having a beveled swage-face land a rear beveledface 17. As indicated most clearly in Fig. 3, the channel 3 does notextend completely to the upper face of the pillow-block; vbut thematerial of the pillowblock overhangs the channel, as shown. Through theupper face of the pillow-block an adjusting-screw 18 passes, the tipwhereof engages the upper face kof the anvil :15, as vindicated. Theside of the anvil rests against the bottom vertical face 19fof thechannel 3. In the side of the anvil a shallow vertical groove 20 isformed, and in the side of the pillow-block a set-screw 21 is mountedwhich projects into the channel 3, as indicated, the

5 5 10 is a view similar to Fig. 9 and representing i extremity of thisset-screw resting in the IOS groove 2O in order to enable the anvil tobe clamped in any position desired, as will be readily understood.

Near the lower and forward portion of the pillow-'block 1 it is formedwith webs 22, located at the side, and between these webs atooth-carrier 23 is rotatably mounted upon a horizontal transversepivot-bolty 24. v The construction of this tooth-carrier is very clearlyshown in Figs. 1 and 5. It consists of a short flat arm, presenting arecess 25 on its cheek, the said recess being preferably of rectangularform, as shown. In this recess 25a toothholder 26 is attached by meansof bolts 27, which pass through vertically-elongated slots 2,8, 'asindicated. This tooth-holder is clearly illustrated in Fig.'8. Upon itsinner faoethere is formed a pocket 29, which is adapted to receive theshank of a tooth 30, which is to be swaged. The form of this pocket andthe manner in which the tooth is held therein will be described morefully hereinafter. At its outer extremity the tooth-carrier 23 isprovided withy an offset- A passes, the same being provided, preferably,

with a check-nut 38, as shown. a

Asindicated most clearly in Fig. 3,the upper wall of the pillow-block isextended-forwardly and on'its under side is Iformed with an arcuate lip39, and the upper or outer eX- tremity of the tooth-carrier 23 islikewise 'formedwitha lip 40, which is adapted to be v .received underthe lip39, asindicated in Fig.

pose of this arrangement is to hold the tooth- 3. Itv may be said atthis point that the pur# carrier" very securely when the tooth is beingapplied tothe swage. The link 32 affords means for holdingthetooth-carrier in the position shown in Fig.' 3. For this urpose the`rear side of the pillow-block 1 is ormed with an upwardly-projectinglug 41, which eX- y tends above the upper wall `of the pillow-v block,as shown. In order to clamp the tooth-carrier in the position shown, thelink will be rotated upon its pivot-bolt 33, so as to dispose the 'samesubstantially horizontal above the upper face of the pillow-block. In

this way the lug 41 will pass into the space between the arms 34 andwill lie adjacent to the head 36 of the link. The clampingscrew 37 willthen be tightened up, so as to force the tooth against .the anvil. Asindicated most clearly in Figs. 3 and 4, the ear 31 is provided with alug 42, which presentsv a radial face or shoulder 43, and this shoulderlies in the path of the bar 35 in rotating upon the pivot-bolt 33. Afterthe swaging operation the link 32 is freed by loosening theclamping-bolt 37 and is then rotated upshould have the form indicated,presenting a curved rear face 45, adapted to receive the rear side ofthe shank, as shown in Fig. 3. At the inner extremity the pocketlpresentsA an inclined face 46, against which the extremity of the shankis adapted to abut, as indicated in Fig. 3. Beyond this inclined faceA46 the forward portionof the pocket is cut away, as indicated at 47, soas to present an enlarged opening through which the tooth may be readilyinserted. With this form of pocket the ressure upon thepoint of thetooth whic tends to force the same rearwardly is resisted by the curvedface 45 and by the inclined face 46'. As indicated, the rear of the headof Athe tooth is formed with a small shoulder48, Fig. 6, which isadapted to abut against an inclined forwardly-projecting shoulder 49,which is formed on the forward edge of the tooth-carrier, as indicated-most clearly in Fig. 1.

The teeth to be swaged are inserted one by one in the pocket 29 of thetooth-holder. The tooth-holder used would correspond to the form ofthese teeth and would have one of another form substituted for swagingteeth of another form. The slots 28 enable the tooth-holder to'beadjusted vertically.

In operation the tooth-carrier would be held upwardly, as indicated inFig. 1, and the link 32 locked over the lug 41 in the manner describedabove. The point of the tooth 30 would then lie adjacent to theswaging-face 6, the outer face of the tooth coming against the beveledface 16 of the anvil. In order to swage the tooth, the operating-lever 8would 'be rotated in the direction indicated by the 'the swage isrepresented in substantially the position to which it must be rotated inorder to swage the tooth as indicated.

. Referring again to the clip 11 or templet, and especially to Fig. 7,the o vthis clip is cut away so as to form a notch51.

wer portion of This notch has a vertical edge 52 and an inclined edge53. The inclination of the edge 53 corresponds to that of the beveledface 16 of the anvil 15. This notch 51 constitutes a swaged. Such teethgenerally have IOO ' be veryfirmly templet to facilitate the grinding ofthe anvil, and for this purpose it is provided with a mark 54. In usingthe templet for gaging an anvil which is being ground the anvil isapplied from time to time to the notch 51, as indicated by dotted linesin Fig. 7, and the rear face of the block indicated by the line isground away more or less, as desired. Where a normal point for the toothwere desired, the grinding is discontinued when the two beveled faces ofthe anvil meet at the mark 54, but if a more obtuse point were desiredthe grinding upon the rear face 17 would be continued until the point ofthe anvil was advanced farther toward the vertex of the notch. In thisway the clip 11 operates as a templet for gaging the grinding of theanvil.

In order to facilitate the removing of the anvil I provide an opening56, which extends through the rear face of the pillow-block to thebottom of the channel, and through this opening a suitable instrumentmay be inserted, so as to force the anvil out of the channel, it beingunderstood that the screws for clamping the anvil would be previouslydisengaged therefrom.

Special attention is called to the arrangement for holding the saw-toothin the holder. With the arrangement described an enlarged opening ispresented through which the saw-f tooth may be inserted without theleast difliculty, and after being inserted the tooth will held withoutthe use of springs, clamping-bolts, or other devices.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. In a machine of the class described, in combination,a pillow-block having a channel therein, a swage disposed transverselyof said channel, an anvil disposed near said swage, a tooth-carrierpivoted to said pillow-block, a link pivoted to said tooth-carrier andadapted to clamp to said pillow-block, said pillowblock having anoverhanging wall presenting an inclined lip and said tooth-carrierhaving a beveled lip cooperating with said first lip.

2. In a machine of the class described, in combination, a pillow-block,a swage and an anvil mounted therein, a toothcarrier pivoted to saidpillow-block, a link pivoted to said tooth-carrier and adapted to clampto said pillow-block, said pillow-block and said tooth-carrier havingbeveled lips adapted to engage, and means for limiting the pivotalmovement of said link upon said tooth-carrier whereby said link mayoperate as a lever to disengage said tooth-carrier.

3. In a machine of the class described, in combination, a pillow-block,aswage and an anvil mounted therein, a tooth-carrier pivoted to saidpillow-block, said pillow-block and said tooth-carrier having beveledlips adapted to be jammed together, a link attached to saidtooth-carrier and adapted to clamp said pillow-block, said tooth-carrierhaving a projection,.said projection lying in the path of a part of saidlink and affording means for limiting the pivotal movement of said linkupon said tooth-carrier whereby said link may operate as a lever todisengage said tooth-carrier.

4. In a machine of the class described, in combination, a pillow-blockhaving a channel formed therein, a swage rotatably mounted in saidchannel, an anvil disposed adjacent to said swage and also mounted insaid channel, a tooth-carrier pivoted to said pillowblock and having aninclined lip near the outer extremity thereof, said pillow-block havingan overhanging wall presenting an inclined lip receiving said first lip,a link pivotally attached to said tooth-carrier and having substantiallyparallel arms with a transverse bar therebetween, said tooth-carrierhaving a projection lying in the path of said bar, a clamping-boltcarried by the extremity of said link, said pillow-block having a lugadapted to receive said clamping-bolt.

5. In a machine of the class described, a tooth-holder adapted toreceive a tooth to be swaged, said tooth holder presenting a pocket forsaid tooth, said pocket having a curved face adapted to receive thecurved wall of the shank of the tooth and an inclined wall adapted toreceive the extremity of said shank, said pocket affording sole means byits form for holding the tooth. f

6. In a machine of the class described in combination, a pillow-block,an anvil and a swage carried therein, a tooth-carrier pivotally mountedon said pillow-block, a link attached to said tooth-carrier and having across-head adapted to engage said pillowblock to lock said tooth-carrierthereagainst.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.l

WALLACE LANGDON NEWELL.

Witnesses:

R. E. PQRTERFIELD, H. S. STOOLFIRE.

IOO

